My mother-in-law, aged 76 yrs, has uncontrolled bowel movement over the past few years. She has anxiety related issues, her gall bladder was removed about 8 yrs ago. She has just been advised serta 25 mg (4 days ago), but has been feeling very drowsy, tingling sensation in one of the arms, and nauseous. Her other meds are: 1. Thyronorm 2. Darolac 3. CCM (calcium) 4. Mighty 60K Pls advice on the above meds, esp Serta 25mg Regards and thanks.